2838940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 6562080

約数和(自身を除く): 3723140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 179, 244, 260, 305, 358, 610, 716, 793, 895, 1220, 1586, 1790, 2327, 3172, 3580, 3965, 4654, 7930, 9308, 10919, 11635, 15860, 21838, 23270, 43676, 46540, 54595, 109190, 141947, 218380, 283894, 567788, 709735, 1419470, 2838940]

約数ペア:

[(1, 2838940), (2, 1419470), (4, 709735), (5, 567788), (10, 283894), (13, 218380), (20, 141947), (26, 109190), (52, 54595), (61, 46540), (65, 43676), (122, 23270), (130, 21838), (179, 15860), (244, 11635), (260, 10919), (305, 9308), (358, 7930), (610, 4654), (716, 3965), (793, 3580), (895, 3172), (1220, 2327), (1586, 1790)]